staging: r8188eu: remove struct intf_hdl

There are no more users of struct intf_hdl in the r8188eu driver. We can
now remove this struct.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Link: https://lore.kernel.org/r/20230123205342.229589-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/drv_types.h

@@ -152,7 +152,6 @@ struct adapter {
 	struct	mlme_ext_priv mlmeextpriv;
 	struct	cmd_priv	cmdpriv;
 	struct	evt_priv	evtpriv;
-	struct	intf_hdl	intf;
 	struct	xmit_priv	xmitpriv;
 	struct	recv_priv	recvpriv;
 	struct	sta_priv	stapriv;

drivers/staging/r8188eu/include/rtw_io.h

@@ -17,12 +17,6 @@
 #include <linux/usb/ch9.h>
 
 struct intf_priv;
-struct intf_hdl;
-
-struct	intf_hdl {
-	struct adapter *padapter;
-	struct dvobj_priv *pintf_dev;
-};
 
 int __must_check rtw_read8(struct adapter *adapter, u32 addr, u8 *data);
 int __must_check rtw_read16(struct adapter *adapter, u32 addr, u16 *data);

drivers/staging/r8188eu/os_dep/usb_intf.c

@@ -290,7 +290,6 @@ static int rtw_usb_if1_init(struct dvobj_priv *dvobj, struct usb_interface *pusb
 {
 	struct adapter *padapter = NULL;
 	struct net_device *pnetdev = NULL;
-	struct intf_hdl *pintf;
 	int ret;
 
 	padapter = vzalloc(sizeof(*padapter));
@@ -317,11 +316,6 @@ static int rtw_usb_if1_init(struct dvobj_priv *dvobj, struct usb_interface *pusb
 	padapter->intf_start = &usb_intf_start;
 	padapter->intf_stop = &usb_intf_stop;
 
-	/* step init_io_priv */
-	pintf = &padapter->intf;
-	pintf->padapter = padapter;
-	pintf->pintf_dev = adapter_to_dvobj(padapter);
-
 	/* step read_chip_version */
 	rtl8188e_read_chip_version(padapter);